PossibleCabbage
Vault 22 Survivor
Actually it requires 6 in CHA actually, not 5, it makes Charleston Cave a cakewalk and a lot of quests in OWB a walk in the park, same with the Green Geckos in Zion being docile and enemies thatcarry dogs getting attacked by their own dogs. You like to kill enemies, that's fine, that doesn't mean making the most enemy that isn't a Deathclaw or Cazador completely docile worthless, they also allow for completion of certain quests in pacifist easier without sneaking.
Well, you have to spend 4 points above the maximum of 1 (plus get the implant) to unlock it. I think that's what Gnarles Bronson was talking about. Honestly though in NV I seem to die from Nightstalkers more than anything else except cazadors (since they are fast, and roam in packs so you can't easily snipe them or kill them all with VATs before you're swarmed). But there's the ancillary benefit of "you don't have to kill dogs."
Seriously, I hate it when games force you to kill wolves or dogs. I'll happily spend a perk slot so I don't have to do it.